<template>
<h3>Child</h3>
<button @click="clickEventHandle">传递数据</button>
</template>

<script>

export default{
    data(){
        return{
            msg:"Child数据2"
        }
    },
    methods:{
        clickEventHandle(){
            this.$emit("someEvent","Child数据1",this.msg)
        }
    }
}
</script>